Alert archive / Michigan / Mesoscale Discussions in 2005

Mesoscale Discussion 2398

November 9, 200544 counties in Michigan

The Storm Prediction Center issued this mesoscale discussion at Nov 9, 2005, 2:38 AM EST for 44 counties in Michigan. It was in force for 97 min.

The area

The outline as issued.

The facts

Issued: Nov 9, 2005, 2:38 AM EST (07:38 UTC)
Expired: Nov 9, 2005, 4:15 AM EST
In force: 97 min
Issued by: the Storm Prediction Center

All 44 counties

Alcona County, MI, Alpena County, MI, Antrim County, MI, Arenac County, MI, Barry County, MI, Bay County, MI, Calhoun County, MI, Clare County, MI, Clinton County, MI, Crawford County, MI, Eaton County, MI, Genesee County, MI, Gladwin County, MI, Grand Traverse County, MI, Gratiot County, MI, Ingham County, MI, Ionia County, MI, Iosco County, MI, Isabella County, MI, Jackson County, MI, Kalamazoo County, MI, Kalkaska County, MI, Kent County, MI, Lapeer County, MI, Livingston County, MI, Macomb County, MI, Mecosta County, MI, Midland County, MI, Missaukee County, MI, Montcalm County, MI, Montmorency County, MI, Oakland County, MI, Ogemaw County, MI, Osceola County, MI, Oscoda County, MI, Otsego County, MI, Presque Isle County, MI, Roscommon County, MI, Saginaw County, MI, Shiawassee County, MI, Tuscola County, MI, Washtenaw County, MI, Wayne County, MI, Wexford County, MI

The radar

The Grand Rapids radar (KGRR), 97 km from the middle of the area, began a volume at 07:41 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 7.6 hours before the alert went out and 129 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1535 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 151 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 8, 7:35 PM EST	Severe Thunderstorm Watch	SPC	Allegan, Barry, Berrien, Branch, Calhoun, Cass and 7 more	8 hr
Nov 8, 8:44 PM EST	Mesoscale Discussion	SPC	Lapeer, Lenawee, Livingston, Macomb, Monroe, Oakland and 3 more	91 min
Nov 8, 10:15 PM EST	Severe Thunderstorm Watch	SPC	Genesee, Ingham, Jackson, Lenawee, Livingston, Macomb and 6 more	7 hr
Nov 8, 10:25 PM EST	Mesoscale Discussion	SPC	Allegan, Barry, Berrien, Branch, Calhoun, Cass and 7 more	2 hr
Nov 9, 12:29 AM EST	Mesoscale Discussion	SPC	Allegan, Barry, Branch, Calhoun, Clinton, Eaton and 23 more	91 min

Nearby

Mesoscale Discussions in Michigan, 2005 Every mesoscale discussion in 2005

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.